Jepang · Stratovolkan
Suwanosejima
- Tipe
- Stratovolkan
- Ketinggian
- 796 m
- Letusan terakhir
- 2026
- Tipe
- Stratovolkan
- Negara
- Jepang
- Wilayah
- Pasifik Barat / Ryukyu Volcanic Arc
- Ketinggian
- 796 m
- Koordinat
- 29.638, 129.714
- Letusan terakhir
- 2026
- Kondisi tektonik
- Zona subduksi / Kerak samudra (< 15 km)
- Bentuk lahan
- Komposit
- Batuan utama
- Andesit / Andesit basaltik
Ringkasan geologi
The 8-km-long island of Suwanosejima in the northern Ryukyu Islands consists of an andesitic stratovolcano with two active summit craters. The summit is truncated by a large breached crater extending to the sea on the E flank that was formed by edifice collapse. One of Japan's most frequently active volcanoes, it was in a state of intermittent Strombolian activity from Otake, the NE summit crater, between 1949 and 1996, after which periods of inactivity lengthened. The largest recorded eruption took place in 1813-14, when thick scoria deposits covered residential areas, and the SW crater produced two lava flows that reached the western coast. At the end of the eruption the summit of Otake collapsed, forming a large debris avalanche and creating an open collapse scarp extending to the eastern coast. The island remained uninhabited for about 70 years after the 1813-1814 eruption. Lava flows reached the eastern coast of the island in 1884. Only about 50 people live on the island.
Ringkasan Wikipedia
Ringkasan InggrisSuwanose Jima (諏訪之瀬島) is one of the Tokara Islands, belonging to Kagoshima Prefecture. The island covers 27.66 km² in area and has a population of 84 people. Although the island has an airport, there are no regularly scheduled services, and access is normally by ferry to the city of Kagoshima on the mainland. The island is about nine hours by boat from the mainland. The islanders are dependent mainly on agriculture, fishing and seasonal tourism.
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Riwayat letusan
27 tercatatGlosariumGaris waktu rinci
- 2004VEI 2Teramati2004-10-23 – 2026-03-16O-take
- 2000VEI 2Teramati2000-02-24 – 2000-02-24O-take
- 2000VEI 3Teramati2000-12-19 – 2004-07-05O-take (Upper NE flank)
- 1999VEI 1Teramati1999-01-05 – 1999-02-24O-take
- 1999VEI 1Teramati1999-06-15 – 1999-06-30O-take
- 1996VEI 1Teramati1996-12-26 – 1997-04-17O-take
- 1990VEI 2Teramati1990-04-16 – 1996-07-14O-take
- 1988VEI 2Teramati1988-01-16 – 1989-12-16O-take
- 1985VEI 2Teramati1985-09-16 – 1987-06-16O-take
- 1984VEI 2Teramati1984-10-16 – 1984-10-16O-take
- 1960VEI 0Teramati1960-07-02 – akhir tidak diketahuiSubmarine E flank (Suwanose-jima Oki)
- 1956VEI 2Teramati1956-11-16 – 1984-05-16O-take
- 1954VEI 0Teramati1954-07-02 – akhir tidak diketahuiSubmarine E flank (Suwanose-jima Oki)
- 1949VEI 2Teramati1949-10-16 – 1954-07-02O-take
- 1940VEI 2Teramati1940-11-29 – akhir tidak diketahuiO-take
- 1938VEI 2Teramati1938-03-11 – 1938-03-11O-take
- 1934VEI 2Metode tidak dinyatakan1934-01-11 – akhir tidak diketahuiO-take
- 1925VEI 2Teramati1925-05-13 – akhir tidak diketahuiO-take
- 1921VEI 2Teramati1921-12-08 – 1922-01-26O-take
- 1915VEI 2Metode tidak dinyatakan1915-07-16 – 1915-09-16O-take
- 1914VEI ?Metode tidak dinyatakan1914-03-21 – akhir tidak diketahuiO-take
- 1889VEI 4Teramati1889-10-02 – 1889-10-13O-take
- 1885VEI 2Teramati1885-01-16 – 1885-05-16O-take
- 1884VEI 1Teramati1884-07-02 – akhir tidak diketahuiNortheastern summit crater (O-take)
- 1877VEI 4Teramati1877-07-02 – akhir tidak diketahui
- 1813VEI 4Teramati1813-07-02 – 1814-07-02SW ridge fissure and O-take
- 1600VEI 4Perkiraan geologi1600 – akhir tidak diketahui
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